:neutral:I have a 2008 gmc sierra SLE, and I upgraded the stock mirrors to the DL8 (power folding, red turn signal, puddle, heated) mirror. I had to do a little mod work because the DL8 has 2 wiring harness and my original (DL3) have 1 harness. I got the puddle lamps to work... Now here comes the tricky part. The 2 wires that come off of the power mirror motor r Yellow and Blue. Only 2 wires, so if you connect them to a battery one way the mirror will fold in. Reverse the polarity and the mirror will fold out. In order to get them to work factory style I would have to purchase the switchboard to control the mirrors and the cpu has to be flashed to DL8 setting. Flashing the computer is pretty expensive and I wondered if anybody knows how I can have a switch (ex. power window switch), mount it to the dash. I'm stuck at how to get 2 wires to function on a power (in/out) switch. I think I need a relay but I have no idea what kind... If anybody knows I would greatly appreciate it..